spm_in_pods.rb

def add_spm_to_target(project, target_name, url, requirement, product_name)
  project.targets.each do |target|
    if target.name == target_name
      pkg = project.new(Xcodeproj::Project::Object::XCRemoteSwiftPackageReference)
      pkg.repositoryURL = url
      pkg.requirement = requirement
      ref = project.new(Xcodeproj::Project::Object::XCSwiftPackageProductDependency)
      ref.package = pkg
      ref.product_name = product_name
      target.package_product_dependencies << ref
      project.root_object.package_references << pkg
    end
  end

  project.save
end


post_install do |installer|
    spm_spec = {
      url: "https://github.com/maplibre/maplibre-gl-native-distribution",
      requirement: {
        kind: "upToNextMajorVersion",
        minimumVersion: "5.11.0"
      },
      product_name: "Mapbox"
    }
    add_spm_to_target(
      installer.pods_project,
      "react-native-mapbox-gl",
      spm_spec[:url],
      spm_spec[:requirement],
      spm_spec[:product_name]
    )
end